Portable sheet bending brake

Abstract

A portable sheet bending brake comprising a first member defining a clamping surface extending longitudinally, a second member extending longitudinally and hinged to the fixed member, and an anvil member extending longitudinally of the sheet bending brake that is moved into and out of clamping position with the fixed member. A floating compensator comprising a compensator member is pivoted to the bending member and a workpiece engaging pad is pivoted to the compensator member such that as the bending member is swung to bend a workpiece, the pad engages the surface of the workpiece and remains in contact with the workpiece at the same area by the relative pivotal action of the bending member, the compensator member and the pad.

I claim: 
     
       1. A portable sheet bending brake comprising a fixed member defining a clamping surface extending longitudinally,   a second bending member extending longitudinally,   means hinging said bending member to said fixed member,   an anvil member extending longitudinally of said sheet bending brake,   means for moving a said anvil member into and out of clamping position with said fixed member so that a workpiece can be clamped between said anvil and fixed member,   a floating compensator comprising a compensator member pivoted solely to the bending member and a workpiece engaging pad pivoted solely to the compensator member and comprising the sole contact with the surface of the workpiece such that as the bending member is swung to bend a workpiece, the pad engages the surface of the workpiece and remains in contact with the workpiece at the same area by the relative pivotal action of the bending member, the compensator member and the pad.   
     
     
       2. The portable sheet bending brake set forth in claim 1 wherein said work engaging pad includes a flat work contacting surface that remains in engagement with the workpiece during bending. 
     
     
       3. The portable sheet bending brake set forth in claim 2 wherein said bending member has a longitudinally extending recess pivotally receiving said compensator member. 
     
     
       4. A portable sheet bending brake set forth in claim 3 wherein said work engaging pad includes a recess pivotally receiving said compensator member. 
     
     
       5. The portable sheet bending brake set forth in claim 1 wherein the contacting surface of the pad forms an angle to the surface of a flat workpiece before engagement therewith. 
     
     
       6. The portable sheet bending brake set forth in claim 1 wherein said pad and said compensator member have interengaging means which retain said pad in a position such that the contacting surface of said pad is inclined at an angle to the surface of a flat workpiece prior to engagement therewith. 
     
     
       7. The portable sheet bending member set forth in claim 1 including spring means interposed between said compensator member and said bending member yieldingly urging said compensator member away from said hinging means.